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| THE NL3ASD MODIFICATION FILES - THE HAM RADIO MODIFICATION - PAGES PAGES E TO H | HOMEPAGE |
From :N3GPP To :MOD Date :920202/1710 Msgid :BF 6 Subject :YAESU FT-990 GENERAL COVERAGE TRANSMIT MOD FOR MARS OPERATION YAESU FT-990 REMOVE TOP COVER LOCATE AND REMOVE CTRL BOARD (CTRL BD. IS THE FAR RIGHT VERTICLE BD LOOKING AT THE TRANCEIVER FROM THE FRONT. REMOVE TWO PHILLIPS HEAD SCREW AND LIFT OUT BOARD.) LOCATE JP5002 (JP5002 IS LOCATED ON THE FAR RIGHT OF THE PC BOARD NEAR THE TOP OF CHIP Q5016. Q5016 IS THE THIRD BIG CHIP LOCATED AT THE FAR RIGHT OF THE PC BOARD.) SOLDER JUMPER JP5002 RE-INSTALL BOARD SET MODE TO CW METER TO ALC RF CTRL FULLY CLOCKWISE ADJUST VR1003 AT 5.000 Mhz TO FULL ALC METER READING. ADJUST VR1005 AT 8.000 Mhz TO FULL ALC METER READING. VR1003/1005 ARE LOCATED ON THE FAR LEFT VERTICLE BOARD LOOKING AT THE TRANCEIVER FROM THE FRONT. THE POT ARE ADJUSTABLE FROM THE TOP. THERE IS NO NEED TO REMOVE THIS BOARD. RE-ASSEMNBLE THE RADIO AND YOU ARE READY TO GO. I WOULD LIKE TO HEAR OF ANY OTHER MODS AVAILABLE FOR THE FT-990. I'AM SURE THERE IS A LOT OF STUFF THAT CAN BE DONE THROUGH THE KEYPAD LIKE ON THE KENWOOD TS-850. 73'S BOBSOURCE: The QRZ Windows Ham Radio CDROM
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